Here We Go Again: US FDA Weighing Accelerated Approval For Biogen’s ALS Drug Tofersen
Executive Summary
Company seeks accelerated approval based on changes in neurofilament as a surrogate for efficacy; with controversy over FDA’s Aduhelm approval in Alzheimer’s still raging, agency is again faced with deciding whether biomarker data in a neurodegenerative disease with high unmet need are sufficient to justify approval in the face of a failed clinical endpoint study.
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